Q plays the title character in the series, a rogue spy who is out to stop the secret agency that turned her into a killer. During a panel on Saturday, April 14, Q and creator/executive producer Craig Silverstein will share insider secrets about what to expect in the final episodes of Season 2, which airs at 7 p.m. Fridays on CW.

Other members of the cast who will attend the Chicago Comic and Entertainment Expo have yet to be announced, but a convention official has told me Q is "100 percent confirmed." Cast members also will sign autographs.

Update: Steven Yeun and Lauren Cohan, Glenn and maggie from AMC's "The Walking Dead," will participate in a Q&A with fans followed by a 3-hour signing session. Stephen Rannazzisi, who plays Kevin in FX's "The League," has been added to the schedule.